Elastic bushing employing an inertial column of damping fluid
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United States of America Patent
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-
Jan 14, 1992
Grant Date -
N/A
app pub date -
Apr 9, 1990
filing date -
Apr 10, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Elastic bushing with hydraulic damping of radial elasticity by circulation of liquid between two chambers opposite one another connected by a very long annular passage located in the round exterior fastening armature. A rigidity decoupling, over a short stroke, is provided by the deformation of a thin wall in each chamber. One side of the thin wall has air thereagainst and the other side has a damping liquid thereagainst. On the air side of the thin wall, movement is limited by an internal fastening ring, and on the liquid damping side by contact with a comb integrated in said internal fastening ring. Application of the bushing is in the fields of mountings for an automobile engine and similar uses.
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